Software Development Exercises - UE05

📜 Tasks

This exercise focuses on creating and testing Java methods. Each task introduces key programming concepts, including test methods, arithmetic calculations, text conversion, and method overloading.

1. Test Methods for Arrays

Develop test methods for array operations:

• testMax: Tests the max method, which finds the maximum value in an array.
• testAdd: Tests the add method, which adds a given value to each element of an array.

2. Price Calculation

Implement methods to calculate:

• Cost Price: Includes material and manufacturing costs plus a 20% distribution markup.
• Sales Price: Adds a 30% profit margin to the cost price.

3. Number to Text Conversion

Convert numbers to their text representation:

• digitToText: Maps digits (0–9) to their English names (e.g., 7 → "Seven").
• numberToText: Converts whole numbers to concatenated digit names (e.g., 123 → "OneTwoThree").

4. Rounding to Closest

Round values to the closest of two boundary values:

• roundToClosest(int min, int max, int value): Rounds a single value.
• roundToClosest(int min, int max, int... values): Rounds multiple values using the first method.

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📂 Project Structure

src/

• In.java Helper class for input
• Out.java Helper class for output
• ArrayMethods.java Contains methods for array operations and their tests
• ProductPricing.java Implements cost and sales price calculations
• NumbersToText.java Implements digit-to-text and number-to-text conversions
• RoundToClosest.java Implements rounding methods

tests/

• Testprotokolle.txt Test cases and results for all tasks

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🛠 Implementation Details

• Test Coverage: Each task includes tests for typical cases and edge cases (e.g., negative inputs).
• Floating-Point Precision: Comparisons account for imprecision using tolerances.
• Modular Design: Methods are reused where possible to reduce duplication.

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🛠 Tools

• Programming Language: Java
• Editor: Visual Studio Code with JavaWiz extension

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📝 License

This project is licensed under the MIT License.